Verify installed Debian package files against MD5 checksum lists from /var/lib/dpkg/info/*.md5sums. debsums can generate checksum lists from deb archives for packages that don’t include one.
debsums is intended primarily as a way of determining what installed files have been locally modified by the administrator or damaged by media errors and is of limited use as a [...]

ping is a very simple tool that is often used to diagnize network problems. ping sends ICMP messages to a machine/IPaddress, if that machine/IP address is listening for ICMP messages it well send a ping back message confirming that IP communication is working between the two machines.

traceroute traces the route between your machine and another [...]

Recovery of supposedly erased data from magnetic media is easier than what many people would like to believe. A technique called Magnetic Force Microscopy (MFM) allows any moderately funded opponent to recover the last two or three layers of data written to disk; wipe repeadetly overwrites special patterns to the files to be destroyed, using [...]

Swish++ is a Unix-based file indexing and searching engine, which is extremely fast in doing it’s job. Swish++ consists of two parts. Index++ can index wll your files with this command: index++ -e “text:*.txt” . (dot at the end required).

Search++ will simply search for a string you mentioned in the search with staistics of it’s [...]